Laporte

...A perennial plant of the Urticaceae family that grows in the shade of trees in mountainous areas. The leaves and stems have stinging hairs that hurt when touched (illustration). The stems are 40-70cm tall. The leaves are egg-shaped and elliptical, 5-15cm long. Both are covered with scattered stinging hairs. The stinging hairs contain acid, and if they prick the skin, they cause lasting pain for a while. The plant has male and female flowers, and is monoecious. The inflorescence of the male flowers is lower than that of the female flowers and is shorter than the leaves. The inflorescence of the female flowers has a long stalk that protrudes from the top of the stem. The male flowers have five perianths. The female flowers have four perianths, two of which grow larger after flowering and encase the fruit. ...

*Some of the terminology that mentions "Laportea" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…山地の木陰に生えるイラクサ科の多年草で，葉や茎に刺毛があってさわると痛い（イラスト）。茎は高さ40～70cm。葉は卵状楕円形で，長さ5～15cm。ともに刺毛を散生する。刺毛には酸が含まれていて，皮膚に刺さると痛みがしばらく持続する。雄花と雌花があり，雌雄同株。雄花の花序は雌花の花序より下方につき，葉より短い。雌花の花序は長い柄があり，茎の上部からつき出ている。雄花の花被は5枚。雌花の花被は4枚あり，うち2枚が花後大きくなって果実を包みこむ。…

※「Laportea」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報